Compare YubiKey 4 and NEO

YubiKey 4 YubiKey 4 Nano YubiKey 4C YubiKey 4C Nano YubiKey NEO
Availability YubiKey 4 YubiKey 4 Nano YubiKey 4C YubiKey 4C Nano YubiKey NEO
USB authentication key, including strong crypto and touch-to-sign, plus One-Time-Password, smart card, and four form factors Combines USB and NFC for mobile communication, enables One-Time Password, smart card, and authentication
Size YubiKey 4 YubiKey 4 Nano YubiKey 4C YubiKey 4C Nano YubiKey NEO
18mm x 45mm x 3.3mm, 3g 12mm x 13mm x 3.1mm, 1g 12.5mm x 29.5mm x 5mm, 2g 12mm x 10.1mm x 7mm, 1g 18mm x 45mm x 3.3mm, 3g
Functions YubiKey 4 YubiKey 4 Nano YubiKey 4C YubiKey 4C Nano YubiKey NEO
Secure static passwords yes yes yes yes yes
Yubico OTP yes yes yes yes yes
OATH – HOTP (Event) yes yes yes yes yes
OATH – TOTP (Time)
Smart card (PIV-Compatible) yes yes yes yes yes
OpenPGP yes yes yes yes yes
FIDO U2F (universal second factor) yes yes yes yes yes
FIDO2 yes yes yes yes yes
Secure element yes yes yes yes yes
Top Applications YubiKey 4 YubiKey 4 Nano YubiKey 4C YubiKey 4C Nano YubiKey NEO
Google accounts yes yes yes yes yes
Facebook accounts yes yes yes yes yes
GitHub yes yes yes yes yes
Docker yes yes yes yes no
Dropbox yes yes yes yes yes
Salesforce yes yes yes yes yes
LastPass premium password manager yes yes yes yes yes
Dashlane premium password manager yes yes yes yes yes
Many more applications yes yes yes yes yes
certifications YubiKey 4 YubiKey 4 Nano YubiKey 4C YubiKey 4C Nano YubiKey NEO
FIDO U2F certification™ yes yes yes yes yes
FIPS 140-2 Certification For FIPS 140-2 Certified YubiKeys, select YubiKey FIPS Series
Communications Support YubiKey 4 YubiKey 4 Nano YubiKey 4C YubiKey 4C Nano YubiKey NEO
USB-A yes yes no no yes
USB-C no no yes yes no
NFC (near field communication) no no no no yes
Device Type YubiKey 4 YubiKey 4 Nano YubiKey 4C YubiKey 4C Nano YubiKey NEO
HID keyboard yes yes yes yes yes
CCID smart card yes yes yes yes yes
FIDO HID yes yes yes yes yes
Cryptographic Specifications YubiKey 4 YubiKey 4 Nano YubiKey 4C YubiKey 4C Nano YubiKey NEO
RSA 2048 yes yes yes yes yes
RSA 4096 (PGP) yes yes yes yes no
ECC p256
ECC p384 no
YubiKey 4
Availability YubiKey 4$40 per key
USB authentication key, including strong crypto and touch-to-sign, plus One-Time-Password, smart card, and FIDO U2F; four form factors Learn more about the YubiKey 4 series
Size YubiKey 4
18mm x 45mm x 3.3mm, 3g
Functions YubiKey 4
Secure Static Passwords yes
YubiKey OTP yes
OATH - HOTP (Event) yes
OATH - TOTP (Time) [fa type="question-circle"]
Smart Card (PIV-Compliant) yes
OpenPGP yes
FIDO U2F (Universal Second Factor) yes
FIDO2 no
Secure Element yes
Top Applications YubiKey 4
Google Accounts yes
Facebook Accounts yes
GitHub yes
Docker yes
Dropbox yes
Salesforce yes
Lastpass Premium password manager yes
Dashlane Premium password manager yes
Many more applications yes
Certifications YubiKey 4
FIDO Certification™ program yes
FIPS 140 Certification [fa type="question-circle"]
Communications Support YubiKey 4
USB-A yes
USB-C no
NFC (Near Field Communication) no
Device Type YubiKey 4
HID Keyboard yes
CCID Smart Card yes
FIDO HID yes
Cryptographic Specifications YubiKey 4
RSA 2048 yes
RSA 4096 (PGP) yes
ECC p256 yes
ECC p384 yes
YubiKey 4 Nano
Availability YubiKey 4 Nano$50 per key
USB authentication key, including strong crypto and touch-to-sign, plus One-Time-Password, smart card, and FIDO U2F; four form factors. Learn more about the YubiKey 4 series
Size YubiKey 4 Nano
12mm x 13mm x 3.1mm, 1g
Functions YubiKey 4 Nano
Secure Static Passwords yes
YubiKey OTP yes
OATH - HOTP (Event) yes
OATH - TOTP (Time) [fa type="question-circle"]
Smart Card (PIV-Compliant) yes
OpenPGP yes
FIDO U2F (Universal Second Factor) yes
FIDO2 no
Secure Element yes
Top Applications YubiKey 4 Nano
Google Accounts yes
Facebook Accounts yes
GitHub yes
Docker yes
Dropbox yes
Salesforce yes
Lastpass Premium password manager yes
Dashlane Premium password manager yes
Many more applications yes
Certifications YubiKey 4 Nano
FIDO Certification™ program yes
FIPS 140 Certification [fa type="question-circle"]
Communications Support YubiKey 4 Nano
USB-A yes
USB-C no
NFC (Near Field Communication) no
Device Type YubiKey 4 Nano
HID Keyboard yes
CCID Smart Card yes
FIDO HID device yes
Cryptographic Specifications YubiKey 4 Nano
RSA 2048 yes
RSA 4096 (PGP) yes
ECC p256 yes
ECC p384 yes
YubiKey 4C
Availability YubiKey 4C$50 per key
USB authentication key, including strong crypto and touch-to-sign, plus One-Time-Password, smart card, and FIDO U2F; four form factors. Learn more about the YubiKey 4 series
Size YubiKey 4C
12.5mm x 29.5mm x 5.5mm, 2g
Functions YubiKey 4C
Secure Static Passwords yes
YubiKey OTP yes
OATH - HOTP (Event) yes
OATH - TOTP (Time) [fa type="question-circle"]
Smart Card (PIV-Compliant) yes
OpenPGP yes
FIDO U2F (Universal Second Factor) yes
FIDO2 no
Secure Element yes
Top Applications YubiKey 4C
Google Accounts yes
Facebook Accounts yes
GitHub yes
Docker yes
Dropbox yes
Salesforce yes
Lastpass Premium password manager yes
Dashlane Premium password manager yes
Many more applications yes
Certifications YubiKey 4C
FIDO Certification™ program yes
FIPS 140 Certification [fa type="question-circle"]
Communications Support YubiKey 4C
USB-A no
USB-C yes
NFC (Near Field Communication) no
Device Type YubiKey 4C
HID Keyboard yes
CCID Smart Card yes
FIDO HID device yes
Cryptographic Specifications YubiKey 4C
RSA 2048 yes
RSA 4096 (PGP) yes
ECC p256 yes
ECC p384 yes
YubiKey 4C Nano
Availability YubiKey 4C Nano$60 per key
USB authentication key, including strong crypto and touch-to-sign, plus One-Time-Password, smart card, and FIDO U2F; four form factors. Learn more about the YubiKey 4 series
Size YubiKey 4C Nano
12mm x 10.1mm x 7mm, 1g
Functions YubiKey 4C Nano
Secure Static Passwords yes
YubiKey OTP yes
OATH - HOTP (Event) yes
OATH - TOTP (Time) [fa type="question-circle"]
Smart Card (PIV-Compliant) yes
OpenPGP yes
FIDO U2F (Universal Second Factor) yes
FIDO2 no
Secure Element yes
Top Applications YubiKey 4C Nano
Google Accounts yes
Facebook Accounts yes
GitHub yes
Docker yes
Dropbox yes
Salesforce yes
Lastpass Premium password manager yes
Dashlane Premium password manager yes
Many more applications yes
Certifications YubiKey 4C
FIDO Certification™ program yes
FIPS 140 Certification [fa type="question-circle"]
Communications Support YubiKey 4C Nano
USB-A no
USB-C yes
NFC (Near Field Communication) no
Device Type YubiKey 4C Nano
HID Keyboard yes
CCID Smart Card yes
FIDO HID device yes
Cryptographic Specifications YubiKey 4C Nano
RSA 2048 yes
RSA 4096 (PGP) yes
ECC p256 yes
ECC p384 yes
YubiKey NEO
Availability YubiKey NEO$50 per key
Combines USB and NFC for mobile communication, enables One-Time Password, smart card, and FIDO U2F authentication
Size YubiKey NEO
18mm x 45mm x 3.3mm, 3g
Functions YubiKey NEO
Secure Static Passwords yes
YubiKey OTP yes
OATH - HOTP (Event) yes
OATH - TOTP (Time) [fa type="question-circle"]
Smart Card (PIV-Compliant) yes
OpenPGP yes
FIDO U2F (Universal Second Factor) yes
FIDO2 no
Secure Element yes
Top Applications YubiKey NEO
Google Accounts yes
Facebook Accounts yes
GitHub yes
Docker yes
Dropbox yes
Salesforce yes
Lastpass Premium password manager yes
Dashlane Premium password manager yes
Many more applications yes
Certifications YubiKey NEO
FIDO Certification™ program [fa type="question-circle"]
FIPS 140 Certification no
Communications Support YubiKey NEO
USB-A yes
USB-C no
NFC (Near Field Communication) yes
Device Type YubiKey NEO
HID Keyboard yes
CCID Smart Card yes
FIDO HID device yes
Cryptographic Specifications YubiKey NEO
RSA 2048 yes
RSA 4096 (PGP) no
ECC p256 yes
ECC p384 no

OATH-TOTP requires additional app, Yubico Authenticator; For YubiKey NEO, FIDO certification applies to both the USB and NFC transports.

Other offerings

Custom programming

Discontinued products

  • For orders of 500 or more YubiKeys, Yubico can limit the functions to provide an equivalent set of features to match legacy Yubico products — contact Sales